Friday, August 28, 2015

After documenting the stock components on the Wheelsport Fantasy 2.0 flat handlebar bike, it is now time to give it an upgrade! First, I will be removing all the components from the bike, and also clean up the frame. At the same time, I can weigh all the components. This will enable me to give an accurate part-by-part summation of the weight of the full bike. Another thing to note is that I only weighed the parts which I plan to use on the upgraded bike. Those components which I am not using again will not be weighed.

I started with removing the wheels from the bike frame. I did not remove the tires and tubes from the wheelset as I will be using the same tires and tubes. As such, the weight of the wheels are inclusive of the tire and tube.

Front wheel + tire + tube: 866 grams

Rear wheel + tire + tube: 1054 grams

Assuming a tire weight of 250 grams each, and a inner tube weight of 100 grams each, the weight of these 451 wheels can be estimated to be 516 grams for the front wheel, and 704 grams for the rear wheel. This gives a wheelset weight of 1220 grams which is a good weight. Compared to the 406 sized Wheelsport Sunny wheelset on the Dahon MuEX (484 grams for front, 709 for rear), the weight is quite similar.

After removing the cassette, I took the chance to clean and lubricate the freehub mechanism. The construction is slightly different from the earlier Wheelsport hubs, as can be seen from this maintenance guide.

Close up look of the folding handlepost. It is similar in design to Dahon/Fnhon/Tern handleposts, with a centre compression bolt and 2 side clamp bolts.

Not too heavy at 401 grams

However, the fork is rather heavy, as it is aluminium with a steel steerer tube

After removing all the components, the bare frame can now be weighed. Inclusive of all the hardware such as the seatpost clamp, RD hanger, headset cups, BB guide and cable adjust bolts, the frame weighs about 1.8kg. Adding the fork (697 grams) and handlepost (401 grams), the total Wheelsport Fantasy 2.0 frameset weight (folding handlepost version) is about 2.9kg.

Hi. I'm just trying my luck and asking if your friend happens to want to sell the foldable handlepost from this wheelsport fantasy. I would like to purchase it. DO feel free to contact me on bernardtjw@gmail.com